Summarized the methods for finding the sum of power series in three cases where the coefficient of a power series is a false fraction of n,a true fraction of n and a factorial of n.The summation function of power series is introduced in the summation of series of constant terms,the limit of sequence of numbers and its application in approximate calculation.
power seriessum functionseries of constant termsconvergence regionapproximate calculationlimit
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